<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域-->
    <el-card class="box-card">
      <!-- 搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域-->
      <el-table :data="userlist" border stripe="">
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)" active-color="#13ce66"
              inactive-color="#ff4949">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRoleDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 添加用户的对话框-->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" @close="addDialogClosed" width="50%">
        <!-- 内容主题区域-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域-->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 编辑用户的对话框-->
      <el-dialog title="修改用户信息" @close="editDialogClosed" :visible.sync="editUserDialogVisible" width="50%">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editUserDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo()">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色的对话框-->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        @close="setRoleDialogClosed()"
        width="50%">
        <div>
          <p>当前的用户：{{userInfo.username}}</p>
          <p>当前的角色：{{userInfo.role_name}}</p>
        </div>
        <div>
          分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
              </el-option>
            </el-select>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveSetRole()">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分页区域-->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 5]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

  </div>
</template>

<script>
  export default {
    data() {
      //验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        //验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
        if (regEmail.test(value)) {
          //合法邮箱
          return cb();
        }
        cb(new Error('请输入合法的邮箱'));
      };
      //验证手机号的规则
      var checkMobile = (rule, value, cb) => {
        //验证手机号的正则表达式
        const regMobile = /^1(3[0-9]|4[5,7]|5[0,1,2,3,5,6,7,8,9]|6[2,5,6,7]|7[0,1,7,8]|8[0-9]|9[1,8,9])\d{8}$/;
        if (regMobile.test(value)) {
          //合法邮箱
          return cb();
        }
        cb(new Error('请输入合法的手机号码'));
      }
      return {
        //获取用户列表的参数对象
        queryInfo: {
          query: '',
          //当前页数
          pagenum: 1,
          //当前每页显示多少条数据
          pagesize: 2
        },
        userlist: [],
        total: 0,
        //控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        //添加用户的表单数据
        addForm: {
          username: "",
          password: '',
          email: '',
          mobile: ''
        },
        //添加表单的验证规则对象
        addFormRules: {
          username: [{
              required: true,
              message: "请输入用户名",
              trigger: 'blur'
            },
            {
              min: 3,
              mas: 10,
              message: '用户名长度在3~10个字符之间',
              trigger: 'blur'
            }
          ],
          password: [{
              required: true,
              message: "请输入密码",
              trigger: 'blur'
            },
            {
              min: 6,
              mas: 15,
              message: '用户名长度在6~15个字符之间',
              trigger: 'blur'
            }
          ],
          email: [{
              required: true,
              message: "请输入邮箱",
              trigger: 'blur'
            },
            {
              validator: checkEmail,
              trigger: 'blur'
            }
          ],
          mobile: [{
              required: true,
              message: "请输入手机号码",
              trigger: 'blur'
            },
            {
              validator: checkMobile,
              trigger: 'blur'
            }
          ]
        },

        //编辑用户信息对话框显示与吟唱
        editUserDialogVisible: false,
        //编辑用户信息
        editForm: {},
        //修改用户信息的验证规则
        editFormRules: {
          email: [{
              required: true,
              message: "请输入邮箱",
              trigger: 'blur'
            },
            {
              validator: checkEmail,
              trigger: 'blur'
            }
          ],
          mobile: [{
              required: true,
              message: "请输入手机号码",
              trigger: 'blur'
            },
            {
              validator: checkMobile,
              trigger: 'blur'
            }
          ]
        },
        //分配角色对话框的显示与隐藏
        setRoleDialogVisible : false,
        //当前正在分配角色的用户
        userInfo : {},
        //获取角色列表
        rolesList : [],
        //被选中的角色id
        selectRoleId:''
      }
    },
    created() {
      this.getUserList();
    },
    methods: {
      async getUserList() {
        const {
          data: res
        } = await this.$http.get('users', {
          params: this.queryInfo
        })
        console.log(res)
        if (res.meta.status !== 200) {
          this.$message.error("获取用户列表失败！");
        }
        this.userlist = res.data.users;
        this.total = res.data.total;
      },
      //监听pagesize改变的事件
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize;
        this.getUserList();
      },
      //监听页码值改变的事件
      handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage;
        this.getUserList();
      },
      //监听 switch 开关状态的改变
      async userStateChange(userinfo) {
        const {
          data: res
        } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`);
        if (res.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state;
          return this.$message.error("更新状态失败！");
        }
        this.$message.success("更新状态成功！")
      },
      //监听对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields();
      },
      //点击按钮添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) {
            return;
          }
          //可以发起添加用户的请求
          const {
            data: res
          } = await this.$http.post("users", this.addForm);
          if (res.meta.status !== 201) {
            this.$message.error("添加用户失败");
          }
          this.$message.success("添加用户成功");
          this.addDialogVisible = false;

          this.getUserList();
        })
      },

      //展示编辑有用户弹出框
      async showEditDialog(id) {
        console.log(id)
        const {
          data: res
        } = await this.$http.get("users/" + id);
        if (res.meta.status !== 200) {
          return this.$message.error("查询用户信息失败！")
        }
        this.editForm = res.data;
        this.editUserDialogVisible = true;
      },
      //监听修改用户对话框的关闭事件
      editDialogClosed() {
        this.$refs.editFormRef.resetFields();
      },
      //监听修改用户信息对话框的确认按钮
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) {
            return
          }
          //发起修改信息的数据请求
          let params = {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
          const {
            data: res
          } = await this.$http.put("users/" + this.editForm.id, params);
          console.log(res)
          if (res.meta.status !== 200) {
            return this.$message.error("更新用户信息失败！")
          }
          //关闭对话框
          this.editUserDialogVisible = false;
          //刷新数据列表
          this.getUserList();
          //提示修改成功
          this.$message.success("更新用户信息成功")
        })
      },
      //删除用户
      async deleteUserById(id) {
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        console.log(confirmResult);
        if (confirmResult !== 'confirm') {
          return this.$message.info("取消了删除操作")
        }
        console.log("确认删除此用户")
        const {data : res} = await this.$http.delete("users/" + id);
        if (res.meta.status !== 200) {
          return this.$message.error("删除用户失败")
        }
        this.$message.success("删除用户成功！")
        this.getUserList();
      },
      //显示分配角色的对话框
      async showSetRoleDialog(user) {
        this.userInfo = user;
        const {data:res} = await this.$http.get("roles");
        if (res.meta.status !== 200) {
          return this.$message.error("获取角色列表数据失败")
        }
        this.rolesList = res.data;
        console.log(res)

        this.setRoleDialogVisible = true;
      },
      
      //提交分配角色信息
      async saveSetRole() {
        if (!this.selectRoleId) {
          return this.$message.error("请选择要分配的角色")
        }
        const {data : res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid : this.selectRoleId});
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error("分配角色失败！")
        }
        this.$message.success("分配角色成功！")
        this.setRoleDialogVisible = false;
        this.getUserList();
      },
      //分配角色对话框的关闭监听事件
      setRoleDialogClosed() {
        this.selectRoleId = ''
        this.userInfo = {}
      }

    }

  }
</script>

<style lang="less" scoped>
</style>
